No Daily Or Weekly Pattern To Earthquakes In Western U.S.
Sunday, August 9, 2009 - 02:35
in Earth & Climate
Daily traffic and noisy machines mask the vibrations caused by earthquakes, making seismic stations unable to detect many M >1 earthquakes. As a result, more earthquakes appear to happen on Sundays and late at night when people and machines are at rest, according to a new study of the apparent daily and weekly periodicity of seismic activity.